Shock-absorber for motor-vehicles.



L. C. &l. H. BRAHST.

SHOCK ABSORBER FOR MOTOR VEHICLES.

APPLICATION FILED-JUNE 13, WW.

. Patented July 1'7, 191?.

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C. BRAKES? AND JULIUS I3RftHSf OF HOBART, INDIJENEL.

it $323 ,Itldlla fipe 'cificatien of Letters latent.

teena e July raisin Application filed June 13,1916. Serial No.1021,4921.

To aZZ-tb homz'tmag concern Be'p'it known'that we, LOUIS C. BRAHST andUnited States, residing at Hobart, in the county of Lake and State ofIndiana, have invented certain new and useful Improvements inShock-Absorbers for h/lotonve hicles; and we do hereby declare the totlowing to he a full, clear, and exact description of the invention, suchas will. enable others skilled in the art to which it appertains to makeand use the same.

This invention relates to shock absorbers for attachment to vehicles forrelieving the springs thereof and more particularly to a shock absorberdesigned for motor vehicles which absorber is constructed forpern'iitting the vehicle springs to contract without undue resistanceandto retard the rebound of the same for the purpose of absorbing shocksoccasioned to the vehicle.

An object of this invention is to provide a construction for connectingthe shock absorber to the frame work and spring of a rotor vehicle so asto eliminate the liability of damage to the shock absorber by theswaying of the vehicle body.

With the foregoing and other objects in view this invention consists insuch novel features of construction, combination and arrangement ofparts as will be hereinafter more fully described, illustrated in theaccompanying drawing and claimed.

In describing the invention in detail reference will. be had to theaccompanying drawing wherein like characters designate like andcorresponding parts throughout the several views and in which Figure lis a section through the improved shock absorber showing parts inelevation.

Fig. 2 is an edge view of the shock. ahsorber, and

Fig. 3 is a view taken on the line 3-3 of Fig. 1.

Referring more particularly to the drawing, 1 designates the cylinder ofthe shock absorber which is provided for retaining oil and which has acover or closure cap 2' removably mounted upon its upper end. Theclosure cap 2 is provided. with an open ing 3 extending therethrough topermit of the filling of the cylinder with oil, and a plug in normallyforms a closure for the opening 3.

A removable head or end piece 5 is at- Jews ll. Enansr, citizens oi? the'tached to the end of the c linder remote from. the cap 2 and ithasnctulllng'hox 6 carried thereby through which too piston rod '2travels. The piston rod 7 has a piston 8 mounted upon its upper endwhich is positioned interiorly oi the cylinder 1. The piston is providedwith a pliiralitv of openings 9 which permit the oil to bass through thepiston during; the operation of the shoclr absorber.

The cylinder 8 has a split ring 10 mounted thereabout and clampedthereon in the usual manner by means of a bolt 11. A pin 12 is formedupon the split ring 16 and it rotatahly seated arecess 13 formed in ablock 15. A nut 16 is mounted the end of the pin for preventing itslongi. tudinal movement in. the recess or bore 13. The block 15 has adepending plate 17 formed thereupon which is. recessed as shown at 18.The plate li' is provided for abutting engagement with one side of aportion of the fame work of a motor vehicle as indicated at 19 and it isconnected thereto through the medium of a bolt 20. The lower surface ofthe block 15 rests upon a portion of the upper surface oi the framework19 of the motor vehicle, and securely connects the cylinder 1 to thetrance work of the vehicle so as to permit of an oscillatory movement ofthe cylinder utilizing the pin 12 as an axle.

The piston rod 7 has its lower end detachably connected as shown at 21to a link 22, which hnk is in turn pivotally connected as shown at 2b tothe bifurcated end 24 of a w Fl bar 25. The bar 25 has a pm 26 formedthereupon which p111 1s rotatablv seated in a bore 26 formed 1n theupstanding portion .28 of a plate 29. The upstanding portion 28 isformed upon the upper surface of the plate 29 substantially equi-distantof its ends, as clearly shown in Fig. 2 of the drawmg. The pin 26 isheld against longitudinal movement within the bore 27 by a nut which ismounted upon the end of the p1n a nd projects through the upstandingportion 28. The plate 29 is attached to the upper surface of the springsof the vehicle, as indicated at 31 by clips 32, the upper portions ofwhich extend across the upper surface of the plate 529 and the lowerends of which are connected to plate 33, as indicated at.3 l. The plate33 extends across beneath the spring 31. The provision of the pins 12and 26 and the pivotal. connection at 23 between the link 22 and the bar25 will permit of movement of the'cylinder the shock absorber uponsidewise swaying movement of the vehicle when running fast or overuneven roads, The provision of the various joints alsov insures thecontinuous operation of'the shockabsorber under all conditions, andeliminates binding or bending of the piston rod and binding oi thepiston head within the cylinder.

The function of the piston 8 is toretard sudden movement of the springsof a vehicle by the resistance oflered to the flow of oil, containedwithin'the cylinder, through the perforations of the piston.

In reducing the invention to practice, certain minor features ofconstruction, combination and arrangement of parts may necessitatealterations to Which the'patentee is entitled provided such alterationsare comprehended Within the scope of What is claimed.

What is claimed is i The combination with an automobile includlng achassis constructed from channel iron and a spring, of a cylinder, apiston operable in the cylinder, a split ring secured to the cylinder, apin formed on the split ring, a plate journaled on the pin and restingupon the upper horizontal portion of the channel iron of the chassis, adown- Wardly depending plate formed upon the first mentioned plate and.having a recess to receive the lower horizontal portion of the channeliron. of the chassis, a bolt extending through the second plate and thechassis, a link detachably secured to the pis-' ton, a bolt pivoted tothe link, a plate positioned upon the spring, substantially U- shapedclamps securing the third mentioned plate upon the spring, and an offsetportion formed upon the third mentioned plate at a point-intermediateits ends and provided Witha bore to rotatably receive the secondmentioned pin.

In. testimony whereof We allix o'ur signatures in presence of twowitnesses.

LOUIS G. BRAHST. JULIUS H. BRAHST.

Witnesses:

JOHN M. S'rocrrnn, Es'rrmn Nrcnnn.

